Wheelbarrow extension



FIG. 1 is a side elevational view of a wheelbarrow extension showing ournew design;

FIG. 2 is a right side perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing in FIG. 1 is included for the purpose ofillustrating environment and forms no part of the claimed design.

The ornamental design for a wheelbarrow extension, as shown anddescribed.